Mechanisms for kin recognition: Preferences that develop as a result of association during ontogeny -“Mediated recognition” through a 3 rd individual Phenotypic.

Similar presentations

Presentation on theme: "Mechanisms for kin recognition: Preferences that develop as a result of association during ontogeny -“Mediated recognition” through a 3 rd individual Phenotypic."— Presentation transcript:

1
Mechanisms for kin recognition: Preferences that develop as a result of association during ontogeny -“Mediated recognition” through a 3 rd individual Phenotypic matching Depends on a strong correlation between phenotypic similarity and genotypic similarity

9
Help to offspring minus help to all unrelated juvs, Help to offspring minus help to ‘behavioral’ offspring Help to ‘behavioral’ offspring minus help to unconnected juvs, Difference between % of help given to juveniles of each type Aid given by adult male baboons to juveniles

10
Factors favoring phenotypic matching: Polygamy: distinguish full from half sibs If nests contain both related and unrelated young Brood parasitism BUT it seems that phenotypic matching doesn’t occur as often as it should

11
Research on congenic mice suggests that: Individuals with the same MHC (major histocompatability complex) treat each other as kin. The neuropeptide oxytocin seems to be necessary for social recognition.

14
Protocol for playback experiments: Two unrelated females (A and B) are sitting together. A is dominant to B. On 3 different occasions, play: 1. Kin of both involved: Threat-grunt of A’s relative paired with scream of B’s relative 2. Kin of one involved: Threat-grunt of A’s relative paired with scream of D 3. Kin of neither involved: Threat-grunt of C paired with scream of E.